Adj Mode; Clv-S Mode - Sony CDP-XB820 Service Manual

4-2. ADJ MODE

The following operations are performed in the ADJ mode, which
is set by connecting the TP1 (ADJ : JW98) terminal to the Ground
and turning on the power.
• During playback, there is no problem even if the GFS is continu-
ously LOW.
• High speed search is prohibited during access.
• During playback, the gain of focus servo and spindle servo does
not decrease.
• Servo related manual operations and measurement can be
performed.
(For details of operations, refer to Table of Key Operrations in
ADJ Mode.)

4-3. CLV-S MODE

The spindle servo for playback sets into the CLV-S mode when
the TP2 (AFADJ) terminal is connected to Ground after turning on
the power.
TABLE OF BUTTON OPERATIONS IN ADJ MODE
The jitter value display mode can be set after the all-music
remaining number mode using the
The functions of the number buttons are shown in the following
table.
FUNCTIONS OF NUMBER BUTTONS
(With the attached remote commander)
Button
1 Focus bias up
2 Focus bias aliasing (upper, middle, lower) display
3 Focus bias (best point, jitter value) display
4 Tracking servo, sled servo off
5 Tracking gain up
6 Focus bias down
7 Focus bias readjustment
8 Focus bias 00 point
9 Tracking servo, sled servo on
10 Tracking gain normal
11 S-Curve mode (play mode only)
12 Eccentric mode
13
14
Reserved for BD
15
16
17 Tracking gain initialize
18 Offset display (TE), EF, Bias
19 Offset display (VC, FE, RF)
20 Auto gain (FCS, TRK)
CLR key (Error Rate, RFCK, GFS) selection
[TIME/TEXT]
button.
Function
[ MAIN BOARD ] – Conductor Side –
JW096
IC930
TP2
(AFADJ)
JW098
TP1
(ADJ)
IC302
CN302
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